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Specifications Vol. II
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Specifications Vol. II
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5/12/2011 11:13:16 AM
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CityClerk-Bids_RFP_RFQ
Project Name
Median Closure
Bid No. (xx-xx-xx)
09-09-01
Project Type (Bid, RFP, RFQ)
Bid
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<br />.., <br /> <br />. <br /> <br />-. <br />. <br /> <br />Test results obtained at the frequency provided above represent the <br />chloride content of all concrete placed subsequent to the preceding test for the <br />determination of chloride content. <br />346-4.2.3 Certification: Determine the chloride content, and certify the test <br />results of chloride determinations to the Department. Include in the certification all <br />pertinent data required by the Department. The Department will require properly executed <br />certifications showing the chloride content within the required limits for acceptance of all <br />concrete produced in accordance with these Specifications. <br />346-4.2.4 Control level for Corrective Action: If the test results indicate that <br />the chloride level is greater than the following limits, suspend concrete production until <br />implementing corrective measures acceptable to the Engineer. <br />(1) Chloride content of 0.65 Ib/yd3 [0.39 kg/m3] or greater for <br />reinforced concrete that does not require Type II cement plus slag or pozzolan(s). <br />(2) Chloride content of 0.35 Ib/yd3 [0.21 kg/m3] or greater for <br />prestressed concrete and all applications that require Type II cement with slag or <br />pozzolan(s) . <br />The Engineer will reject the concrete exceeding the maximum <br />allowable chloride content limits shown in 346-4.2.1. <br /> <br />., <br />. <br /> <br />" <br />. <br /> <br />f"II <br /> <br />. <br /> <br />1"'"1 <br /> <br />. <br /> <br />.., <br />. <br /> <br />'I <br />. <br /> <br />346-5 Sampling and Testing Methods. <br />Perform concrete sampling and testing in accordance with the following methods: <br /> <br />.., <br />. <br /> <br />r I <br /> <br />!fABLE 5 <br />Description Method <br />Slump of Hydraulic Cement Concrete ASTM C 143 [ASTM C 143M] <br />Air Content of Freshly Mixed Concrete by the Pressure ASTM C 231 <br />Method * <br />Air Content of Freshly Mixed Concrete by the ASTM C 173 [ASTM C 173M] <br />Volumetric Method * <br />Making and Curing Test Specimens in the Field ASTM C 31 [ASTM C 31 M] <br />Compressive Strength of Cylindrical ConcretE ASTM C 39 [ASTM C 39M] <br />Specimens * * <br />Obtaining and Testing Drilled Core and Sawed Beams 01 ASTM C 42 [ASTM C 42M] <br />Concrete <br />Early Sampling of Fresh Concrete During the Initial FM 5-501 <br />Placement <br />Low Levels of Chloride in Concrete and Raw Materials FM 5-51 6 <br />Density (Unit Weight) , Yield and Air Conten ASTM C 138 [ASTM C 138M] <br />(Gravimetric) of Concrete <br />Temperature of Freshly Mixed Portland Cement ASTM C 1064 [ASTM C 1064M] <br />Concrete <br />Sampling Freshly Mixed Concrete ASTMC172 <br />* Use the same type of meter for QC tests as the Department uses for Verification testing. <br />When using pressure type meters, use an aggregate correction factor determined by thE <br />concrete producer for each mix design to be tested. Record and certify test results for <br /> <br />, <br />. <br /> <br />.., <br /> <br />. <br /> <br />. <br /> <br />,.., <br />. <br /> <br />.., <br /> <br />. <br /> <br />" <br />. <br /> <br />,.., <br /> <br />. <br /> <br />" <br />. <br /> <br />,., <br />. <br /> <br />..., <br /> <br />09/09 <br /> <br />01000-97 <br /> <br />03-4122.F <br /> <br />- <br />
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